Europe scales up sustainable solid-state battery production
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Thirteen partners across eight European countries are collaborating on the SOLiD project to develop a new way to manufacture solid-state lithium-metal batteries.
Launched in September 2022, SOLiD aims to address the limitations of current lithium-ion batteries by creating batteries with higher energy density, improved safety, longer lifespans, and built-in recyclability. The project focuses on redesigning the manufacturing process, moving away from traditional, wasteful methods to techniques like dry electrode coating and precise control of battery components.
SOLiD researchers are pioneering roll-to-roll dry extrusion coating, which eliminates the need for toxic solvents and reduces energy consumption during electrode fabrication. They have also developed a new polyester-based solid polymer electrolyte, PESDA, that demonstrates superior mechanical and electrochemical properties compared to earlier materials. The team has successfully scaled up processes like pulsed laser deposition for creating thin lithium-metal anodes and atomic layer deposition for protective coatings on cathode materials.
Currently, the project has established a pilot-scale production line integrating smart inspection tools and a digital twin, an AI system that links inspection data to process control, to reduce defects and improve efficiency. SOLiD is also conducting a comprehensive life cycle assessment to ensure sustainability is a core part of the manufacturing process.
The project expects to deliver a cost-efficient, high-yield, and environmentally responsible production line, helping Europe reduce its reliance on battery imports and secure its place in the global clean-tech market.
